SSC General Science & Technology Sample Paper NCERT Sample Paper-7

  • question_answer
    Consider the following statements with reference to the Cruise Missile
    1. These kinds of missile make use of gravitational force of the earth to make a strike.
    2. It is capable of escaping from radar detection.
    3. Lakshya is India's first cruise missile with range of 600 km. Which of the statements given above is/are correct?

    A)  1, 2 and 3

    B)  1 and 2

    C)  2 and 3

    D)         Only 1

    Correct Answer: C

    Solution :

    [c] A cruise missile is a guided missile used against terrestrial targets, so called because the major portion of its flight path is conducted at cruise speed. The dynamics of cruise are a result of aerodynamic lift (force), and the equality of the thrust or propulsion forces against aerodynamic drag and as a result there is no acceleration. Modern cruise missiles are capable of travelling at supersonic or high subsonic speeds, are self- navigating, and are able to fly on a non-ballistic, extremely low-altitude trajectory.

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